<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Document</title>
    <script src="lib/vue-2.4.0.js"></script>
  </head>

  <body>
    <div id="app">
      <h1 :style="styleObj1">这是一个h1</h1>

      <h1 :style="[ styleObj1, styleObj2 ]">这是一个h1</h1>
    </div>

    <script>
      var vm = new Vue({
        el: "#app",
        data: {
          styleObj1: { color: "red", "font-weight": 200 },
          styleObj2: { "font-style": "italic" } //属性有_要加引号
        },
        methods: {}
      });
    </script>
  </body>
</html>
